update example config

Signed-off-by: kim (grufwub) <grufwub@gmail.com>

docs/example.toml

@@ -3,11 +3,21 @@
 #       statements and anywhere else you may
 #       need them
 
-root = "/home/grufwub/gopher_space"
+# Server root directory
+root = "/var/gophi"
+
+# Server bind address
 listen = "127.0.0.1"
+
+# Server hostname
 hostname = "localhost"
+
+# Port to listen on
 port = 1024
-#fwd-port = 70
+
+# Enable user server spaces, e.g.
+# ~/public_{gopher,gemini}
+user-spaces = false
 
 [connection]
     # Connection read timeout